Stroke Calculator

CHA2DS2-VASc Calculator

Answer Yes or No to the criteria outlined below to determine your risk of ischemic stroke if you have atrial fibrillation. Add up your scores at the end and use the table below to determine your risk.

Congestive Heart Failure

High Blood Pressure



History of Stroke

Vascular Disease

65 to 75 years old?

Over 75 Years Old

Your Score:-

Down ArrowBlood Clot RiskDown Arrow

Score: 0
Low Risk
Score: 1
Intermediate Risk
Score: 2
High Risk
Score: 3
High Risk
Score: 4
High Risk
Score: 5
High Risk
Score: 6
High Risk
Score: 7
High Risk
Score: 8
High Risk
Score: 9
High Risk


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